Blasting-cap charge



orrron.

CHARLESM. STINE, OF WOODBURY, NEW JERSEY, ASSIGNOR T0 E. I. Dr: PON'I DENEMOUBS AND COMPAN'Y OE WILMINGTON, DELAWARE, A CORPORATION OF DELAWARE.

BLASTING-CAP CHARGE.

1,309,552. Rio Drawing.

clear, and exact description thereof.

My invention relates particularly to charges to be inserted. in blastingcaps so as to explode main charges of any suitable type. v The object ofmy invention is to provide an explosive charge adapted for use inblasting caps and in difi'er'ent types of primers used for thedetonation of high explosives. More particularly the object of myinvention is to provide an explosive charge suited for use in blastingcaps or 111 primers of other types, said charge containing a compoundwhich contains both a nitro group and a nitrate group.

While my invention is capable of embodiment in many difl'erent forms forthe purpose of illustration I have described only certain forms thereofhereinafter.

For example, my invention may be car-' ried out as follows:

A blasting cap made in accordance with my invention may contain anyexplosive compound which contains a nitro and a nitrate group, but, forexample, it may contain any one of the' compounds represented by thefollowing formulae:

C IIOH. (OH NO (N0 2 C ELGH (CH NO (N0 2 These compounds may be preparedin any suitable way, but I have .described one way of manufacturing thesame in my co-pending'application upon Process of producin explosivecompounds, and product thereof Serial No. 110278, filed July 20, 1916.These compounds are very highly explosive, and are easily detonated by avery small amount of priming material. as, for ex ample, fulminate ofmercury or lead azid. For example, dinitrotolylene nitrate,

Specification of Letters Patent.

Patented July 8, 1919.

Application filed August 12, 1916. Serial No. 114,498.-

produces in this way a very powerful blastmg cap charge or composition.A blasting cap may be provided with from 0.4 to 1.0 gram ofdinitrotolylene nitrate, the amount used depending upon the grade ofblasting cap desired. This is pressed into the copper shell of the capin the usual manner.

On top of this there is pressed a priming charge consisting of about 0.4gram of mercury fulminate. Instead of placing the dinitrotolylenenitrate and the 'fulminate of" mercury in-separate layers, these twocompounds may be mixed together, for example, in the proportion of 80parts dinitrotolylene nitrate to 20 parts fulminate of mercury, and themixture pressed into a copper shell. This produces a very powerfulblasting cap which when ignited by the ordinary safety fuse or byelectrical means or otherwise provides an exceedingly efficient agentfor the detonation of'dynamite or other high explosive.

While I have described my invention above in detail, I wish it to beunderstood that many changes may be made therein without departing fromthe spirit of my invention. For example, I do not desire to limit myselfto any particular method of particular manner of using the same.

I claim r 1. An explosive composition containing an organic compoundhaving therein a nitro group and a nitrate group, and a primingmaterial. I

2. An explosive composition containing an organic compound of thearomatic series having therein a nitrogroup and a nitrate group, and apriming material.

3. An explosive composition containing an organic compound havingtherein a nitro group and a nitrate group, and a priming material, therebeing a plurality of one of said groups present.

4.. An explosive com osition containing an organic compound 0 the.aromatic series having therein a nitro group and a nitrate group, and apriming material, there being a plurality of one of said groups present.

5. A priming compositloncontaining an organic compound of the aromaticseries parts dinitrotolylene nitrate and 20 parts having the formula: offulminate of mercury 1 f I 10 I In testimony that I c aim tie oregolngOBHZCHZNQLNOZ) have hereunto set my hand. I 5 6. A priming compositioncomprising a I CHARLES M. STINE.

dinitrotolylene nitrate and fulminate of Witnesses: mercury. FRANK L.Porn,

7. A priming composition comprising 80 WM. G. LODGE.

